本文给出了条件数学期望的几何定义，证明了该定义与其它定义的一致性。
In this paper, We give a geometrical definition of conditional expectation. Identity of the definition and other definitions is discussed.
条件数学期望是概率论中一个重要概念，本文通过求数学期望的例子和最优预测探讨了它的应用。
This paper explores the application of conditional expectation in solutions to mathematical expectation and best prediction.
在得出港口货物吞吐量概率分布的基础上，利用条件数学期望提出了港口货物吞吐量的双层预测模型。
A double forecasting model is proposed by using conditional mathematical expectation, based on probability distribution of port cargo throughput.
文章针对这一问题，在数据为混合相依的条件下，给出一般函数条件数学期望的估计，并讨论了它的收敛速度。
In this paper, the author gives a solution for this problem and discusses the convergent rate of nonparametric kernel estimate under mixing dependent data.
文章针对这一问题，在数据为混合相依的条件下，给出一般函数条件数学期望的估计，并讨论了它的收敛速度。
In this paper, the author gives a solution for this problem and discusses the convergent rate of nonparametric kernel estimate under mixing dependent data.
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